Answer:
Human X and Y chromosomes determine the biological sex of a person, with XX specifying female and XY specifying male. Although the Y chromosome contains a small region of similarity to the X chromosome so that they can pair during meiosis, the Y chromosome is much shorter and contains many fewer genes.
Explanation:
 
        
                    
             
        
        
        
It consists of the brain and the spinal cord
        
                    
             
        
        
        
When we exercise, we are burning body fat. During exercises, the quantity of body fat cells will start to decrease. As a result, a dominant percentage of the fat molecules are exhaled as carbon dioxide.
I hope this helps!
        
             
        
        
        
Answer: The cat is similar in anatomy to the other felid species: it has a strong flexible body, quick reflexes, sharp teeth and retractable claws adapted to killing small prey. Its night vision and sense of smell are well developed.
Explanation: